Medications to avoid before skin testing

Stop 7 days before testing:

• Alavert (loratadine)
• Allegra (fexofenadine)
• Zyrtec (cetirizine) 
• Claritin (loratadine)
• Clarinex (desloratadine)
• Doxepin
• Hydroxyzine
• Xyzal (levocetirizine)

Stop 24 hours before testing:

• Benadryl (diphenhydramine)